Journal of The Japan Society of Electrical Machining Engineers
Online ISSN : 1881-0888
Print ISSN : 0387-754X
ISSN-L : 0387-754X
Search
Advanced search
OR
Browse
Search
Volume 3, Issue 5
Displaying 1-5 of 5 articles from this issue
Show all abstracts
    • |<
    • <
    • 1
    • >
    • >|
  • Heat Transmission of the Electric Discharge Machining and the Depth of the melted work
    Mitsutomo IKEDA
    1969 Volume 3 Issue 5 Pages 1-22
    Published: September 30, 1969
    Released on J-STAGE: March 12, 2010
    DOIhttps://doi.org/10.2526/jseme.3.5_1
    JOURNAL FREE ACCESS
    Show abstractHide abstract
    To clarify the mechanism of the electric discharge machining, it is necessary to investigate the location of discharge energy at the point of the electric discharge and the mutual action of the energy.
    This report presents explanation of the basic patterns of applying a source of heat in an electric discharge machining.
    Our hypothesis is that the time after the electric discharge as well as the discharge time has a significant role in the depth of melted work and the Working volume, This will be very important in the future synthetic study of the mechanism of the electric discharge machining.
    Our coming _report will deal with heat transfer from the surface of the work, mutual action between the melted work and the gas pressure, and some examples of the experiments.
    View full abstract
    Download PDF (2512K)
  • [title in Japanese]
    [in Japanese], [in Japanese]
    1969 Volume 3 Issue 5 Pages 23-29
    Published: September 30, 1969
    Released on J-STAGE: March 12, 2010
    DOIhttps://doi.org/10.2526/jseme.3.5_23
    JOURNAL FREE ACCESS
    Download PDF (548K)
  • [title in Japanese]
    [in Japanese], [in Japanese], [in Japanese], [in Japanese]
    1969 Volume 3 Issue 5 Pages 30-39
    Published: September 30, 1969
    Released on J-STAGE: March 12, 2010
    DOIhttps://doi.org/10.2526/jseme.3.5_30
    JOURNAL FREE ACCESS
    Download PDF (11283K)
  • Electrolytic Process and Weakened Surface Layer of Cemented Carbide
    Mamoru KUBOTA
    1969 Volume 3 Issue 5 Pages 40-49
    Published: September 30, 1969
    Released on J-STAGE: March 12, 2010
    DOIhttps://doi.org/10.2526/jseme.3.5_40
    JOURNAL FREE ACCESS
    Show abstractHide abstract
    In electrolytic abrasive machining surface layer of cemented carbide is weakened by preferential dissolution of binder phase. The weakened layer increases mechanical removal but it may badly influence on the character of the finished work.
    Generating mechanism of the weakened surface layer was experimentally investigated by an electrolytic cell. Experiments were performed with the several sorts of carbide alloy and its components WC, TiC, and Co.
    The results obtained are as follows:
    1) The first peak of a current-potential characteristic curve is caused by the decobaltizing process of cemented carbide. The second peak features to fall off the anodic film.
    2) High cobalt alloy containing 24% Co and 76% WC cracks by a low potential electrolysis in which dissolves binder cobalt only. Common carbide alloys (5-8% Co) are weakened in surface layer in any anodic potential.
    3) The depth of the decobaltized layer calculated from the electrolytic current in the low potential electrolysis is nearly equal to the depth measured by the asland superfinishing.
    4) Comparatively high hardness and porosity of the decobaltized layer of low cobalt alloy suggest a possibility to utilize it as an anti friction material.
    View full abstract
    Download PDF (4979K)
  • Application of Electrohydraulic Metal Forming Equipment to various Industries and its Development for Mass Production
    Yoshikazu Aoki, Mitsuo Kosaka, Yuzo Tanaka, Koichi Kamo
    1969 Volume 3 Issue 5 Pages 50-66
    Published: September 30, 1969
    Released on J-STAGE: March 12, 2010
    DOIhttps://doi.org/10.2526/jseme.3.5_50
    JOURNAL FREE ACCESS
    Show abstractHide abstract
    This paper presents the electrohydraulic metal forming equipment developed at the Shimadzu Seisakusho Ltd. and some applications using this equipment to the production of several industrial parts.
    The specifications, constructions and features of the equipment for short and medium run production to form difficult shapes of complex parts are discussed. Various industrial parts formed by this equipment are shown as examples, And the tooling requirement, versatility and economy of the process are discussed.
    with the aforementioned equipment and techniques as a base, new equipment for mass production has been developed. The problems of electrodes, capacitors, power supply, switching apparatus and others of this equipment are discussed. Especially, a design for the discharging chamber, which called the “Multiple part simultaneous forming system” and which makes mass production possible, is described.
    Description of this type of the equipment designed to make unique parts with application in the automotive and electrical industries are presented.
    View full abstract
    Download PDF (21822K)
    • |<
    • <
    • 1
    • >
    • >|
feedback
 Top